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Ch.14_vocabulary

Physical Science vocab

WordsDeff.
chemical reaction is a process in which one or more substances change to make one or more new substance.
precipitate ia s soild substance that is formed in a solution.
chemical formula is a shorthand way to use chemical symbols and numbers to represent a subtance.
chemical equation uses chemical symbols and formulas as a shortcut to describe a chemical reation.
reactants the stating materials in a chemical reation.
products the substances formed from a reation.
Law of Conservation of Mass the law that states that mass is neither created nor destroyed in ordinary chemical and physical change
synthesis reation is a reation in which two or more substance combine to form one new compound.
decomposition reation is a reaction in which a single compound breaks down to form two or more simpler subtances.
single-displacement reaction an element replaces another element that is a part of a compound.
double-displacement reaction is a reaction in which ions from two componds exchange place.
exothermic reaction a chemical reation in which energy is released.
endothermic reation a chemical reaction in which energy is taken in.
Law of Conservation of Energy the law states that energy cannot be created or destroyed.
activation energy is the smallest amount of energy that molecules need to react.
inhibitor is a substance that slows down or stops a chemical reaction.
catalyst is a substance that speeds up a reaction without being permanently changed.
Created by: xxKay_29xx
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